6667425 has 18 divisors (see below), whose sum is σ = 11942502. Its totient is φ = 3555840.

The previous prime is 6667403. The next prime is 6667429. The reversal of 6667425 is 5247666.

It can be written as a sum of positive squares in 3 ways, for example, as 2143296 + 4524129 = 1464^2 + 2127^2 .

It is not a de Polignac number, because 6667425 - 2⁵ = 6667393 is a prime.

It is a super-2 number, since 2×6667425² = 88909112261250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6667425.

It is not an unprimeable number, because it can be changed into a prime (6667429) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14592 + ... + 15041.

Almost surely, 2^6667425 is an apocalyptic number.

It is an amenable number.

6667425 is a deficient number, since it is larger than the sum of its proper divisors (5275077).

6667425 is a wasteful number, since it uses less digits than its factorization.

6667425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29649 (or 29641 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 6667425 is about 2582.1357439143. The cubic root of 6667425 is about 188.2143416955.

The spelling of 6667425 in words is "six million, six hundred sixty-seven thousand, four hundred twenty-five".